International Klein Blue

#0C38A8

About International Klein Blue

International Klein Blue, also known as IKB, is a deep blue hue renowned for its intensity and impact. Developed by the French artist Yves Klein, it was specifically formulated to achieve the maximum color depth and visual effect. Klein registered this color as a trademark in 1957, solidifying its place in art history. The unique quality of IKB comes from its matte finish, which enhances the saturation and creates an almost ethereal appearance. It's frequently used in modern art, design, and fashion to evoke feelings of depth, creativity, and boldness. Its vibrant nature makes it instantly recognizable and aesthetically compelling, capturing the viewer's attention.

International Klein Blue, represented by the hex code #0C38A8, presents moderate accessibility challenges. Its relatively low luminance can cause issues with text legibility, especially when used as a background color with light text. According to WCAG guidelines, sufficient contrast ratios are crucial for readability. For normal-sized text (less than 18pt or 14pt bold), a contrast ratio of at least 4.5:1 is recommended, while large text requires a ratio of 3:1. This color may fail to meet these ratios when paired with certain lighter shades. To improve accessibility, consider using it with very light or very dark text colors that provide adequate contrast, or utilize it sparingly for decorative elements rather than essential information displays. Proper testing with accessibility evaluation tools is highly recommended to ensure compliance and inclusivity.

Shades

Digital Color Formats

RGB
12 56 168
RGB12 56 168
Red
Green
Blue
HSL
223.08deg 86.67% 35.29%
223.0886.6735.29HSL
Hue
Saturation
Lightness
HWB
223.08deg 4.71% 34.12%
223.084.7134.12HWB
Hue
Whiteness
Blackness
hex#0C38A8
rgb12 56 168
hsl223.08deg 86.67% 35.29%
cmyk92.86% 66.67% 0% 34.12%
hwb223.08deg 4.71% 34.12%
xyz-d650.09 0.06 0.38
oklch0.3978 0.1848 263.64
oklab0.3978 -0.02 -0.18
CMYK
92.86% 66.67% 0% 34.12%
92.8666.67034.12CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.09 0.06 0.38
0.090.060.38XYZ
X
Y
Z
OKLCH
0.3978 0.1848 263.64
0.39780.1848263.64LCH
Lightness
Chroma
Hue
OKLAB
0.3978 -0.02 -0.18
0.3978-0.02-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons